Process of loosening (opening) tin plates for cold rolling



Sept. N, 1923. DAW5 A.. KONTSEK PROCESS OF LOOSENING (OPENING) TINPLATES FOR COLD ROLLING Filed Aug. 17. 1921 Patented Sept. 11, 1923.

UNETD PROCESS OF LOOSENING (OPENTNG) TIN PLATES COLD ROLLING.

Application filed August 17, 1921.

To all whom it may concern:

Be it known that I, ALBERT KoN'rsnK, a citizen of the United States,residing at Meadowlands, in the county of Washington and State ofPennsylvania, have invented certain new and useful Improvements inProcesses of Loosening (Opening) Tin Plates for Gold Rolling; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to a method and apparatus for opening orseparating metal plates or sheets such as are usually packed or piledone upon another in the process of manufacture, and more particularlytin plates, the edges of which, during the hardening process, meltsomewhat, so that the plates come out of the ovens more or less solderedtogether, and can be separated or forced apart only after pounding themwith heavy hammers or heavy iron bars, and by the hammering and beatingthe plates are bent, so that they may be more easily separated.

The object of my invention is to dispense with the slow, cumbersome andexpensive process of separation by hand, and to provide simple andefiicient electro-mechanical means for easily and quickly accomplishingthe desired result, at comparatively little expense, and moreefliciently and without injury to the plates by hammering and beatingthem. 1

The invention will first be hereinafter more particularly described,with reference to the accompanying drawings, which are to be taken as apart of this specification, and then pointed out in the claims at theend of the description.

In said drawings, Fig. 1 is a side elevation of a pile or column of tinplates with an insulator and electro-magnet resting thereon foreffecting a separation of said plates by energizing said magnet;

Fig. 2 is a similar view showing a modified form of insulator;

Fig. 3 is a perspective view of the insulator shown in Fig. 1; and

Fig. 4: is a perspective view of the insulator shown in Fig. 2. mm!

In practicmg my invention, after the plates are removed from thehardening ovens Serial No. 493,144.

and cooled oil, I place on top of a pile, column, or batch of plates,denoted by the letter A, either at one end, or about midway of thelength of the pile, an insulator B, Fig. 1, or B Fig. 2, and on top ofthe insulator I place an ordinary electro-magnet M, connected in circuitwith a source of electric supply, for energizing the same, and havinggreat power or suiilcient power to adapt it to perform the desiredfunction on the pile of plates to be separated. The insulator B mayconsist of a block of wood, flat on the under side or base thereof, andenlarged toward one end in wedge-shaped form, said enlarged end beingrounded, as at .7). It is preferably made in two parts, of dry wood, asshown in Fig. 2, the lower part 6 consisting of a piece of board havingflat upper and lower sides, and the upper part 6 consisting of a blockof wood in the form of a wedge, or having converging upper and lowersides and rigidly secured to said base.

The insulator B is constructed with parallel top and bottom 6 and b androunded sides Z2 and Z), as shown, and the magnet rests on its flatupper side or top.

The insulating blocks, whether made in one piece, or two or more pieces,rigidly secured together, are designed to be constructed in differentsizes, according to the size and width of the plates to be separated.

In operation, the parts being assembled, as shown in Fig. 1, and currentturned on, the magnet will be energized and caused to quickly loosen thefree edges of the upper most plate, which are not covered by theinsulator, and draw or pull the plate partly away from thenextunderlying plate, or column of plates, whereupon the current isinterrupted and again turned on, to separate the next succeeding platein the pile or column of plates, and so on, in quick succession, untilthe desired number of plates or such number as the magnet has power toseparate are separated and pulled apart in the manner shown in Fig. 1,and thereupon a piece of board C, several inches thick, is put betweenthe separated and still adherent plates at one side of the column, andthe electro-magnet raised up and the insulator placed on the other sideof the column, and the process repeated until all of the partlyseparated plates are entirely separated. The separated plates may thenbe removed, ready for cold rolling, and the tearing 0a or the next layerof plates proceeded with and finished in the manner stated. The tearingoff process is repeated as many times as may be necessary to separate acertain number or the entire batch or column of plates. A

, dozen or more plates may be separated by a powerful electro-magnet tothe extent indicated before applying it on the other side of the column,and before removing the separated plates and proceeding with the tearingof? process on the remaining plates of a large pile or column.

W hen the insulator is placed between the ends or sides or the plates,as shown in the modification, Fig. 2, the magnet will act on oppositeends or sides so as to pull and raise the endsor sides oi" the plates onboth sides of the'insulator sii'i'niltaneously, and when a dozen, moreor less, plates have been so acted upon, the insulator is then placedacross thewidth or length ol the plates at right angles to its firstposition, whereupon the operation is continued until the remammgunloosened side or end portions of the plates are loosened andseoarated, thus linishing the operation.

I do not broadly claim the method oi? separating metal plates by theaction or": an electro n'iagnet or magnets, but what l claim as new anddesire to secure by Letters-Patent of the United States is:

1. The herein described method o'fseparating tin plates, or the like,which consists in arranging a batch oi. plates in juxtaposition to anelectro -magnet, then energizing the magnet, thuscausing the outer oruppermost plate to be torn loose and pulled partl away from the nextunderlying plate,

' then again energizing the magnetso as to cause the next succeedingplate to be loosened and drawn away from the plate underlying the same,and so on, from plate to plate, E11 succession.

2; Theherein described method o'li separating tin plates, or the like,which consists in arranging a batch of plates in j LlXLlPOSltion to anelcctroanagnet and interposing an insulating block, then energizing themagnot, thus causing the outer or uppermost plate to be torn loose andpulled. partly away from the next underlying plate against the pressureof said block, then again energizing the magnet so as to cause the nextsucceeding plateto be loosened and drawn away from the platem iderlyingthe same, and so on from plate to plate, in succession.

3. The herein described, method ol sepa rating tin plates, or the like,which consists in arranging a batch of plates in juxtaposition to anelectro magnet and interposing an insulating block having a roundededge,

then energizing the magnet, thus causing the outer or uppermost pl ateto be torn loose and pulled partly away from the next underlying plate,against the rounded edge of said block, then again energizing the magnetso as to cause the next succeeding plate to be loosened and drawn awaytromthe plate underlying the same, and so on, from plate to plate insuccession.

The herein described method of separating tin plates, or the like, whichconsists in arranging a large pile or column of plates in juxtapositionto an electro magnet with an insulating block on the uppermost platebetween it and said magnet, then energizi g themagnet-intermi'ttently,'whereby several plates are torn loose and pulledpartly away 'l'roui the next underlying plate in succession, thenshifting the position of the insulator and subjecting the remainingunloosened portions of the plates successively to the action ol 'thcmagnet until the desired number are separated.

5. The herein described method of separating adherent metal plates,which consists in arranging a pile or columnot plates in juxtapositionto an electro-magnetxresting on an insulator between it and the pile ofplates, then energizing the magnet, whereby the uppermost plate is tornloose and pulled partly away from the next underlying plate, then againenergizing the magnet,.whereby the latter plate is torn loose and pulledpartly away from the'ncxt succeeding plate, and

so 011,-successirely, "from plate to plate,

then shifting the position of the insulator so that the magnet may acton the remaining unloosened portions of the plates and again energizingsaid magnet intermittently until the partly separated plates arecompletely separated.

6. The herein describedmethod ot separating adherent tin plates, or thelike, which consists in arranging a pile or column of plates and an clectro-magnet in slightly separated relation and interposing aninsulating block, then energizing the magnet, whereby side or endportions of the uppermost plate are torn loose and pulled away from thenext underlying plate, then subjecting the latter plate to the action oisaid magnet, whereby side or end portionsthereor are torn loose andpulled awayatrom'the next succeeding plate, and so on, successively,

until a batch of plates are partly separated,

then arranging the magnet so as to act upon the other side or endportions of said plates and subjecting the remaining unseparatedportions of the plates successively to the action of said niiagnet.

ALBERT KONTSEK.

